Not long ago, I wrote about my sons and I taking our “Cahn All-Boys 2014 Spring Break” trip to see my father outside Washington, D.C. In that column, I talked about visiting College Park Aviation Museum in College Park, Md., and how I was inspired to think about getting a similar museum built -- someday -- here in Camden at Woodward Field. I’ve had some nice responses to that column and I promise to get back to that idea in the near future. Today, however, I want to tell you about another of the stops my father took us to: the Frederick Douglass House in D.C.’s historic Anacostia community on the city’s southeast side at 1411 W St. SE, Washington, DC 20020.